Remove extra semicolon after method definition

The mac build treats this as an error.

R=stichnot@chromium.org

Review URL: https://codereview.chromium.org/429253002
diff --git a/src/IceInst.cpp b/src/IceInst.cpp
index 6893856..af7152f 100644
--- a/src/IceInst.cpp
+++ b/src/IceInst.cpp
@@ -611,7 +611,7 @@
   Str << ", ";
   Str << getSrc(1)->getType() << " ";
   getSrc(1)->dump(Func);
-};
+}
 
 void InstInsertElement::dump(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrDump();
@@ -625,7 +625,7 @@
   Str << ", ";
   Str << getSrc(2)->getType() << " ";
   getSrc(2)->dump(Func);
-};
+}
 
 void InstFcmp::dump(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrDump();